Uranium Palladium Comparison
Periodic Table
Symbol
U
Pd
Group Number
0
18
10
8
Period Number
7
5
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7440611
28
7440053
99+
Space Group Name
Cmcm
Fm_ 3m
Space Group Number
63.00
10
225.00
2
Facts
Interesting Facts
- Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
- Palladium alloys are used for Jewelry contains (95% Palladium and 5% Ruthenium)
- In the late 1800s, Palladium metal used have more economical value than the Platinum metal.
- Palladium element is known as a good catalyst
Sources
Earth's crust, Mining, Ores of Minerals
Ores of metals
History
Who Discovered
Not Available
William Hyde Wollaston
Discovery
In 1789
In 1803
Abundance
Abundance In Universe
2 * 10-8 %
29
2 * 10-7 %
22
Abundance In Sun
~0.0000001 %
26
~0.0000003 %
24
Abundance In Meteorites
0.00 %
99+
0.00 %
99+
Abundance In Earth's Crust
0.00 %
36
0.00 %
99+
Abundance In Oceans
0.00 %
11
Not Available
Uses
Uses & Benefits
- The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
- Synthetic elements like transuranium are made from Uranium metal.
- Mostly palladium metal is used in catalytic converters. In electronic industry it is used in ceramic capacitors of mobile and computer.
- It is used in jewellery and dental fillings and crowns.
Industrial Uses
Ammunition Industry, Chemical Industry
Aerospace Industry, Automobile Industry, Electronic Industry
Medical Uses
NA
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues
Coinage, Bullion, Jewellery
Biological Properties
Toxicity
Toxic
Toxic
Present in Human Body
No
No
Physical Properties
Melting Point
1,132.00 °C
39
1,554.90 °C
22
Boiling Point
3,818.00 °C
16
2,963.00 °C
33
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Silver
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.00
6
4.75
9
Brinell Hardness
2,350.00 MPa
2
320.00 MPa
33
Vickers Hardness
1,960.00 MPa
2
121.00 MPa
36
Speed of Sound
3,155.00 m/s
25
3,070.00 m/s
26
Optical Properties
Refractive Index
Not Available
1.72
1
Reflectivity
Not Available
84.00 %
4
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Chemical Properties
Chemical Formula
U
Pd
Isotopes
Known Isotopes
25
14
38
1
Electronegativity
Pauling Electronegativity
1.38
28
2.20
4
Allred Rochow Electronegativity
1.22
26
1.35
21
Allen Electronegativity
Not Available
1.59
22
Electropositivity
Pauling Electropositivity
2.62
26
1.80
99+
Ionization Energies
1st Energy Level
597.60 kJ/mol
99+
520.23 kJ/mol
99+
2nd Energy Level
1,420.00 kJ/mol
99+
7,298.22 kJ/mol
2
3rd Energy Level
1,900.00 kJ/mol
99+
11,815.13 kJ/mol
3
4th Energy Level
3,145.00 kJ/mol
99+
Not Available
Electrochemical Equivalent
1.48 g/amp-hr
99+
1.99 g/amp-hr
30
Electron Work Function
3.63 eV
30
5.12 eV
3
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Corrosion, Ionization, Solubility
Atomic Properties
Atomic Number
92
26
46
99+
Electron Configuration
[Rn] 5f3 6d1 7s2
[Kr] 4d10
Crystal Structure
Orthorhombic (ORTH)
Face Centered Cubic (FCC)
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100
FCC-Crystal-Structure-of-Palladium.jpg#100
Atom
Number of Protons
92
26
46
99+
Number of Neutrons
146
13
60
99+
Number of Electrons
92
26
46
99+
Radius of an Atom
Atomic Radius
156.00 pm
29
137.00 pm
40
Covalent Radius
196.00 pm
14
139.00 pm
99+
Van der Waals Radius
186.00 pm
33
163.00 pm
40
Atomic Weight
238.03 amu
21
106.42 amu
99+
Atomic Volume
12.59 cm3/mol
40
8.90 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
170.00 (-eV)
4
33.00 (-eV)
99+
Lattice Constant
295.08 pm
99+
389.07 pm
25
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
19.10 g/cm3
17
12.02 g/cm3
29
Density When Liquid (at m.p.)
17.30 g/cm3
7
10.38 g/cm3
17
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
27
Vapor Pressure at 2000 K
0.01 (Pa)
20
0.00 (Pa)
30
Elasticity properties
Shear Modulus
111.00 GPa
10
44.00 GPa
17
Bulk Modulus
100.00 GPa
16
180.00 GPa
9
Young's Modulus
208.00 GPa
10
121.00 GPa
16
Poisson Ratio
0.23
30
0.39
5
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable, Weldable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
18.80
10
12.02
21
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Properties
Electrical Property
Poor Conductor
Conductor
Resistivity
0.28 nΩ·m
99+
105.40 nΩ·m
29
Electrical Conductivity
0.04 106/cm Ω
37
0.10 106/cm Ω
22
Electron Affinity
Not Available
54.23 kJ/mol
17
Thermal Properties
Specific Heat
0.12 J/(kg K)
40
0.24 J/(kg K)
23
Molar Heat Capacity
27.67 J/mol·K
15
25.98 J/mol·K
33
Thermal Conductivity
27.50 W/m·K
40
71.80 W/m·K
23
Critical Temperature
Not Available
Not Available
Thermal Expansion
13.90 µm/(m·K)
27
11.80 µm/(m·K)
33
Enthalpy
Enthalpy of Vaporization
477.00 kJ/mol
13
376.60 kJ/mol
19
Enthalpy of Fusion
15.48 kJ/mol
19
16.74 kJ/mol
18
Enthalpy of Atomization
489.50 kJ/mol
14
393.30 kJ/mol
22
Standard Molar Entropy
50.20 J/mol.K
31
37.60 J/mol.K
40
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